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" <br />S <br />404 N Wiget Lane <br />Walnut Geek CA 94598 <br />e quo la <br />4 <br />- <br />(925) 98&96009600 <br />Analytical <br />FAX (925) 988-673 <br />www segi� <br />tert-Butvl alcohol <br />Getter Ryan, Inc -Dublin Project Chevron <br />6747 Sierra Court Suite J Project )Number Chevron 11 9-5775 Reported <br />Dublin CA 94568 Project Manager Scott Polston 25 -Jul -0010 44 <br />Volatile Organic Compounds by trA xLetnoa ainUA <br />Sequoia Analytical - Walnut Creek <br />Reporting <br />Analvte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br />Inf (W007080-04) Water <br />Sampled 06Jul-00 1139 <br />Received 06 -Jul -00 13 45 <br />Ethanol <br />ND <br />1300000 ugll 2500 0607018 07 -Jul -00 07 -Jct -00 EPA 8260A <br />tert-Butvl alcohol <br />ND <br />250000 " <br />Methyl tert-butyl ether <br />390000 <br />5000 " <br />Di -isopropyl ether <br />ND <br />5000 <br />Ethyl tert-butyl ether <br />10000 <br />5000 " <br />tert-Amyl methyl ether <br />ND <br />5000 " <br />1,2-Dichloroethane <br />ND <br />5000 " <br />Ethylene dibrorrude <br />ND <br />5000 » " <br />Surrogate Dnbromofluoromethane 102% 50-150 " <br />Surrogate 12-Dnchloroethaned4 960% 50-150 " <br />ER(Air) (W007080-05) Air Sampled 06 -Jul -00 12 03 Received 06Jul-00 13 45 <br />tett-Butyl alcohol ND 20 mg/m, Au 1 0GO7014 07 -Jul -00 07 -Jul -00 EPA 8260A <br />Methyl tert butyl ether ND 050 <br />Di -isopropyl ether ND 050 " <br />Ethyl tert-butyl ether ND 050 <br />tert Amyl methyl ether ND 050 " <br />Surrogate Dibromofluoromedmne 104% 50-150 <br />Surrogate 1,1 Dichloroethatted4 960% 50-150 " <br />Inf (Air) (W007080-06) Air Sampled 06 -Jul -00 12 06 Received 06-Tul-00 13 45 <br />tent -Butyl alcohol <br />1200 <br />100 mg/ink' Air 5 0007014 06-Ju1-00 06 -Jul -00 EPA 8260A <br />Methyl tert-butyl ether <br />1400 <br />25 " 50 07 -Jul -00 " <br />Di -isopropyl ether <br />ND <br />25 5 " " 06 -Jul -00 " <br />Ethyl tert-butyl ether <br />150 <br />25 <br />tat Amyl methyl ether <br />ND <br />25 <br />Surrogate Dtbtnntofluoromed mme <br />940% 50-150 <br />Surrogate 1 2 Dichloroed=ed4 <br />760% 50-150 5-04 <br />Sequoia Analytical - Walnut Creek The results in flus report apply w the samples analyzed in accordance with the <br />custody document. Ms analyucal report must be reproduced in its <br />Page it of 25 <br />